Compatible with chain and gear drive camshafts. Complete Feuling kit with the HP+ oil pump (588054); the special high flow cam support plate (588056) a set of HP+ series hydraulic lifters (566066) and a quick cam gasket set (588035).• Quieter and smoother engine operation• Increase oil pressure; scavenge volume and engine oil flow• 30% more pressure gear volume over stock• 53% more scavenge gear volume over stock• 42% more scavenge volume with port sizing; matched passages and holes to the engine case• 46% more oil volume to the crankshaft and connecting rod bearing• 15-25 degree cooler engine temperatures• 15-30 degree cooler oil temperatures • 10-30 more PSI of oil pressure• Reduces wet sumping; blow by and oily air cleaners• Magnets in oil pump to help protect gears and pressure relief valve• Test results show 2 HP gain and 2 ft/lbs. of TQ gain to the rear wheel on Milwaukee Eight• NOTE: FEULING test results show a 50% reduction of engine sump oil level.Both HP+ and RACE SERIES kits include FEULING''S HIGH FLOW billet cam plate made from 7075 aluminum which is 50% harder and stronger than the factory or Feuling OE+ cam plates. FEULING increases oil flow and volume by enlarging the oil pump reservoirs and critical oil passages including matching the oil port holes throughout the cam plate to the port holes in the engine case which increases engine oil flow to the lifters; piston cooling jets; crankshaft and rod bearings.The FEULING oil pumps are bench teste